Display screen or portion thereof with graphical user interface



FIG. 1 is a front view of an embodiment of the claimed design of a display screen or portion thereof with a graphical user interface;

FIG. 2 is a front view of another embodiment of the claimed design of a display screen or portion thereof with a graphical user interface; and,

FIG. 3 is a front view of another embodiment of the claimed design of a display screen or portion thereof with a graphical user interface.

The outermost broken lines in the Figures illustrate the display screen or portion thereof and form no part of the claimed design. The other broken lines in the Figures illustrate portions of the graphical user interface and form no part of the claimed design. 

CLAIM We claim the ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 